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From: bchen@owl.caltech.edu (Bing-Qing Chen)
Newsgroups: comp.sys.next
Subject: Re: 68040 Math / Why so much system time?
Message-ID: <1991Feb18.004252.6932@nntp-server.caltech.edu>
Date: 18 Feb 91 00:42:52 GMT
References: <1991Feb17.113656.5876@kithrup.COM> <712@chiton.ucsd.edu> <1331@toaster.SFSU.EDU>
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In article <1331@toaster.SFSU.EDU> eps@cs.SFSU.EDU (Eric P. Scott) writes:
>
>No, NeXT changed the compiler (as described in the online Release
>Notes).
>
>Anyone care to post benchmarks using the 68040-ONLY -mieee-math
>option?
>
>					-=EPS=-

There is no change in performance at all using the -mieee-math flag. 
The only difference between 2.0 compiler and 1.0 compiler that caused some
performance increase is that 2.0 compiler no longer generates fintrzx 
instructions which is terribly slow on 68040.


- Bing Chen